Control apparatus



F. G. MOARD.

CONTROL APPARATUS.

APPLICATION mtu JULY 3.1916.

1 ,338,626, Patented Mar. 16, 1920.

wlTNEssEs z INVENTOR f/d/hand. Meara.

FERDINAND G. EGARD, 0F TURTLE GREEK, PENNSYLVANIA, ASSIGNOR TQWEST- INeHAoUsn ELECTRIC PENNSYLVANIA.

Specification of Letters Patent.

AND MANUFACTURING-COMPANY, A CORPQBvAr-TION 0F coN'raoL APPARATUS.

Patent-,ed Mar. 16,1920.

nppneanon med my 3. 191s. serial no. 107,452. i

To all 'reliant itmay concern( 'Be itknown that '1, FnmbrNAND (En'MoAnD,

a citiznof the"1iited States, and a resident of Turtle Creek, in thecountyof Alleghcny and State of Pennsylvania, have invented a new and useful Improvement. 1n Control Apparatus, o f which .thefollowlng is a speciiication.-

My invention relates to control apparatus and particularly to Ina netically-actuated valves for controlliny l'fluid under pressure. One object of my invention is to provide a Vvalve of the above-indicated class in which the actuatin mechanism is 'disposed in a fluid-tight casing'of'partcularly sirnple and durable constructiond" Another object of my invention is to pro'- vide a casing having a plurality of fluidti ht compartments. :j

eretofore, in magnet rvalves, and particularly in valves having a throttled eX- haust, it has been proposed to provide'va` rions formsy of fluid-tightseals for inclosing the movin parts of the valve. My invention provi es a gasket that is interposed between the core of the energizing coil and the inclosing casing and thereby provides a ma et-valve casing having 'a plurality of Hui ,-tight compartments.

Figure lof the accompanyin drawin is a top plan view of a magnet va ve embo y- 1n A preferred 4:form of magnet valveshovvnV in the drawing Vcomprises a casing 1, which is preferably 'of magnetizable 'lnateriah having' a bottom ortionthatisprovided with a valve mec anism'f2A and' a'icentral portion which constitutes a core 3 for an energizingcoil 4, a top 5 for the casing 1 and an improved form of sealing 4gasket 6 which is interposed between the cover member and the casing.

The bottom portioni of the casing 1 is provided' with a supply port 7, through which fluid, under pressure, is admitted to the device, a deliveryport 8 :through whichV 4is secured to t my invention, and Fi 2 is a sectional to hereinaftersetforthfA The How of fluid from/the "ydeliveryport `8 to the exhaust port9'i`s by vvayofa valve 12 that is normally 'biased to an vopen position by the spring 111 and is operatively connected to tie valve 10 by ashaft 13 in order that, when one valve is opened, the other valve maybe vvclosed. The exhaust port 9 is provided with ya Huid-throttling device 14 which adjustably regulates thev rate of escape of fluid `through-the ort9.

The upperportion 'of t e casin 1 is recessed to receive the' energizing coil 4.1 The hollow core 3 is integralwith the casing 1 andjis 'provided with a 15 fivhich is 'in threaded, engagement with the izo're 3 and has an over-hangiiigj-top po'rtion" that is adapted to securethe coil 4' in place, by crimping the endsbf an interposed sleeve 16, and' to clatn 'thegasket to the 'core to form a Huid-tig Vt joint therewith. A'rod 17, the lower end o'fwhich constitutes a 1ortion of the valve 12 and'tlie upper end'o which extends above thecap v15, ismovably posi tioned within th l1'o`llow".oc` e 3 and is adapted to be actuated (by an amature 18. The 'top 5 is provided with'an annular flange 19 which is adapted to engage in a corresponding roove in the casing 1, and e casing 1 by aA plurality of bolts20. 1Anon-mag'netizable shell 21, which is disposed within a recess'f the top 5, constitutes agllide for the armature 18, and' insures a'A suitable' bearing" surface therefor:",'1hefinsrtion of a non-magnetic gap in- ,the' ntla'gietic path also prevents the armature from sticking by reason of residualrnagnetisni the iiu'x path. f

The annular disk 6 is rigidly clamped between the casing 1 andthe topy 5 and between the core 3 and the cap 15. The joints with the leasing and the core are fluid-,tight and thereby provide an upper com artment 22 in which the movable parts of t e valve are positioned and a coil-containing compartment 23 in which the energizing coil 4 is mounted.

A magnet valve'of the.` form herein described isactuated` by energizing the Vcoil 4 which produces` a magneticv iiuxY .in afpath ezdzendin'g'l from the core 3 through the armature 18, the top 5 and the casing' 1 to the'core 3. The energizationof the arma` ture 18 causes the same to be attracted toward the cap 15 and, since-the armature for clam ing the4 parte o gether, o a. gasket interposed between the.'

bears upon the rod 17, the movement of the armature opens the valve 10 by depressing the sprlng- 11" and closes the valve 12, thus admittingV fluidto the device to be actuated. The denergization of the coil 4 causes the armature l5 to be immediately released, by reason of the interposed sleevel 21'-,\"and the valve 10 to" be closed by the' spring 1l. This movement also establishes a connection from the delivery port 8 to the atmosphere through the exhaust port 9 and, since the fluid cannot esca e through the hollow core 3to the'atinosp ere, byreason of the sealin member 6, the rate of operation of the evice to be actuated ma be rgulated by properly adjusting the t'rott e.14.

ll it is desired to operate such a valve as -l have hereindescribed under water or to control soiii'e fluid other than dry air, the inclosed coil is effectively prevented from absorbing moisture or being damaged by fluid coming iii contact with it by' locating thencoil in a fluid-tight compartment.

The sealing gasket '6 is preferably cfa soft. metal that will engage the clamping surfaces to form a Huid-tight joint but may be made of non-metallicl material, such, for instance, as rubb r or leather.- Itis desirable,'ho \vever, to avc the gasket 6 made of non-magfiotizable material in order that a fluir`- ath may vnot be established from the core sdiretly to the Casin 1. 'i

Althoufh I havcdescri 'ed my invention in a simpl-b and )referred form, it is ca ab e of various inodiiicationsand I desire, t 1erefore, that only such limitations shall be iniposed as are-.indicated in the appended clams.

'claim as my invention:

l. In a in net valve, the combination withan energizing coil, a hollow core for sa'id coil comprisin a plurality oi aits, a easngor said coi comprising a urality of parts, and me for clamping tie parts of said casin tege er, oi an annular' asket claed bettgveen the .membersof sai core mi between e members of said' 2. In a magnet valve, tie 4combination with an energizing coil, a core for said coil comprising a plurality of'parts, a casing comprising a plurality of parte and means said casing toparts of said corefand clamped between the parts, of said A 3. In a magnet-valve, the combination with a coil, a niawnetizable casinof for said coil, a top for sair casing, means for clamping said top to said easing, a magnetic core for said coi and acap forsad core adapted to be secured thereto, of a, asket adapted to be interposed between saiy casing and said t0 El. In a magnet valve, the, combination core for sai co with an eiei'gi'l'ing coil, a ciisiii fox" Said coil, a top for said casing adapte to closely fit said casin a hollow core membenhwying the lower en theme15integral' witlr smid casing, and a hollow cap' memberrfhaving threaded engagement with said core, of a soft metallic washer inter osed between said (fore and` cap and exten ing radially over' said coil. v

5. I'n a magnet valve, the combination with a coil, a casing for. said coil, a top for said casing,.a corsie@` sadfnl vhaving one en secured to sah;y casii'igmi aca'p tothe other end o said core, of relatively soft metallic gasket interposedbetween said core and said cap and between said and saidtop.

6. In a magnet valve, the `cbxnbirmtion with ali energzing coil, a corefo'r coil, a cap for soi core, a casi and a top for said E ifsing, diga gasket interposed between said: core and cap an between said casing Aand top.

T. In a magnet valve, the combination with an energi`z'ing coi l,. a fors'aid coil comprising ajpl'ur ity o parte, lmeans for clampi said arts toge'liei, aliollovlf 0 airing endfseci`ired to said casiiiv an' a. capint redod'enga' ement with e other end of sai oore,. o gasket interpo'sedfbetive n the parts ofsaid casincan `said ce and ca. g

8. n a A.iiiagfgnet valve, sie combination with an enel-giingcloil, a core for saidcoil comprising a plurality of separado pa'rts, and a casingfo'r 'saidcoii comprising a plurality of separable. mein ers, 'afg`sle`t-n terposed between thepertstof sadbo're and y between the members of s'aid caer 9. In a magnet valye, the com "ihation with van energizing coil, a. casing for said coil comprising;V a plurality of parts', and means for clamping Jthe parte ofs'ad together, 'of an 4nular gasket clamped b'etween tlie parts o "sai Ices'i'n 10. n a magnet valve, t e combination withV an energizing coil, a hollow coreffor said coil, and a cap `for said core, of a gasket interposed between sai core'fand 'ea'4 and adapted to ,form a substantially flu'i tight oint therewith;

11 n a magnet valve, the combination with an energizin coil, a' ca-sing'fforpajt tially inclosin sai coil.- -atopfons i oasing, and a ho ow core or saigll coilhaving one end thereof in substantially Huid-'ti ht engagei'nent with said casing, of a gas -et interposed between sairl core and said 'to i to constitute a substantially fluid-tight inc osin? compartment for said coil.. Y

n testimony whereof, 1 have hereunto sulsscrib'ed my name this 29 day of June 19 FRINAD G. MAD.l 

